Finding the Fourth Proportional to 47,574.64, 71,356.56 and 12,517

Step by Step Solution

1. Step 1: Write the proportion equation
   47,574.64 : 71,356.56 = 12,517 : x
2. Step 2: Convert to fraction form
   47,574.64/71,356.56 = 12,517/x
3. Step 3: Cross multiply
   47,574.64x = 71,356.56 × 12,517
4. Step 4: Simplify right side
   47,574.64x = 893,170,061.52
5. Step 5: Solve for x
   x = 893,170,061.52/47,574.64
6. Step 6: Final answer
   x = 18,774.08